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Siete Mares Soup served in a decorative blue bowl surrounded by toppings and a Mexican loteria card.
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5 from 45 votes

Caldo de Siete Mares

Caldo de Siete Mares (or Mexican Seven Seas Soup) is full of flavor and hearty goodness. It’s made of different types of seafood simmered in a rich chile broth.
Prep Time25 minutes
Cook Time15 minutes
Total Time40 minutes
Course: Dinner
Cuisine: Mexican
Servings: 4 people
Calories: 148kcal
Author: Maggie Unzueta

Ingredients

For the Sauce

  • 4 guajillo chiles (stem removed, seeds removed)
  • 2 cups water (for rehydrating)
  • 2 tomatoes
  • ¼ onion rough chopped
  • 1 garlic clove
  • 2 cups water (for blending)
  • 1 teaspoon salt

Homemade Shrimp Broth:

  • 1 lb shrimp medium
  • ¼ onion
  • 1 garlic clove
  • 1 bay leaf
  • 1 teaspoon salt
  • ½ teaspoon pepper
  • 6 cups water

For the Soup:

  • 2 tablespoon Mazola® Corn Oil
  • 1 octopus (diced)
  • ½ lb oysters (shucked)
  • 4 clams
  • ½ lb cod fish (or any firm white fish)
  • 4 scallops
  • 4 pieces snow crab legs

Instructions

For the Sauce:

  • Place the guajillo chiles in a stock pot and cover with water.
  • Bring to a boil.
  • Turn heat off, and let sit for 5-7 minutes.
  • Drain water.
  • Place the rehydrated chiles, tomatoes, onion, garlic, 2 cups water, and salt in a blender.
  • Blend until smooth.

For the Homemade Shrimp Broth:

  • Remove the shells from the shrimp.
  • (note: use already deveined shrimp)
  • Set the shrimp aside and in the fridge.
  • Place the shrimp shells along with the onion, garlic, bay leaf, water, salt, and pepper.
  • Boil for 20 minutes.
  • Remove and discard the shells.
  • Set the shrimp broth aside.

For the Soup:

  • Heat the oil in a large stock pot.
  • Strain the sauce into the pot.
  • Be careful. It might splatter.
  • Cook for 2-3 minutes.
  • Add the shrimp broth.
  • Stir to combine.
  • Add the octopus, oysters, shrimp, fish, clams, scallops, and snow crab legs.
  • Bring to a boil.
  • Turn heat off.
  • Serve and enjoy.

Video

Notes

You can mix and match whatever type of seafood you find at the store. Other seafood options - mussels, lobster, or baby scallops. 
Very Important: Use a thick, meaty fish like cod, monkfish, pollock, or halibut. 
To bring down the cost of the soup, use frozen seafood. OR, add more of the less expensive ingredients and only add a few of the more pricey ingredients.
If you would like to add carrots or potatoes, add them when you are heating the oil and straining the sauce. 
 

Nutrition

Calories: 148kcal | Carbohydrates: 7g | Protein: 12g | Fat: 8g | Saturated Fat: 1g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 30mg | Sodium: 1267mg | Potassium: 497mg | Fiber: 2g | Sugar: 4g | Vitamin A: 1477IU | Vitamin C: 12mg | Calcium: 54mg | Iron: 1mg